The K7 factory of ASE Group was found discharging wasted water and pollute Houji River in Kaohsiung. The court reviewed the case and held that ASE not guilty for the environmental deterioration. The public seriously criticized the judgment, however, the reasoning and the underlying problem may not be fully discussed and disclosed. This article examines the debate between the court and the prosecutor, on the one hand to analyze the possible deficit of the reasons, on the other hand to inquire the role of legislature and executive. This article argues that, the incompleteness of court’s decision is only a tip of the iceberg; legislature and executive also contribute to the failure of environmental protection.